| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3706 |
79.6%
|
| 2 | I did not smoke during the past 12 months | 541 |
11.6%
|
| 3 | Yes | 237 |
5.1%
|
| 4 | No | 171 |
3.7%
|
| Sysmiss | 17 |